409 409L tubo y tubo soldado de acero inoxidable

Density: 7.8 g/m³
OD: 6.35-762mm
Wall thickness: 0.1-30mm
Length: 1-12m
Equivalent designations:
EN 1.4512, ASTM 409, UNS S40900;
AISI 409l, UNS S40903;
Surface: 180grit,240 grits,400grit,600grit , 1D,2B,NO.4,6K,8K,hairline, satin and mirror finish
Packing: woven bags, wooden box,iron box or as required

409 stainless steel is a ferritic stainless steel commonly used in machinery, construction and other projects. Due to the presence of austenite grains, the mechanical properties are greatly improved. And because of the addition of many alloying elements, the strength and hardness are also greatly improved.

409L stainless steel is highly resistant to corrosion, high temperatures and fatigue, enabling life and weight reduction of exhaust system components.
The 409L has high temperature resistance, high efficiency engine and exhaust system, and reduced exhaust system thickness to reduce exhaust emissions.
409L is a new environmentally friendly product with low cost, good flexibility, high yield and easy replacement.

409L/S40903 stainless steel grade comparison:
International: ISO X2CrTi12
United States: ASTM 409L/S40903
Europe: EN X2CrTi12/1.4512
Japan: JIS SUH409L

Process specification for 409L/S40903 stainless steel
Preheat / °C: 760
Initial forging temperature / °C: 1040~1120
Final forging temperature / °C: 705~790
Cooling method: air cooling

Heat treatment of 409L/S40903 stainless steel:
Annealing temperature is 780~950 °C, fast or slow cooling